Home / 20,716.99-31,063.49-14,151.11

Finding the Fourth Proportional to 20,716.99, 31,063.49 and 14,151.11

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Solution

The fourth proportional to 20,716.99, 31,063.49 and 14,151.11 is: 21,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.99 : 31,063.49 = 14,151.11 : x
  2. Step 2: Convert to fraction form
    20,716.99/31,063.49 = 14,151.11/x
  3. Step 3: Cross multiply
    20,716.99x = 31,063.49 × 14,151.11
  4. Step 4: Simplify right side
    20,716.99x = 439,582,793.22
  5. Step 5: Solve for x
    x = 439,582,793.22/20,716.99
  6. Step 6: Final answer
    x = 21,218.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.